More than 650,000 flags line the National Mall in remembrance of the hundreds of thousands of Americans who have died of COVID-19. The "In America: Remember" public art installation is based on a concept by artist Suzanne Brennan Firstenberg and is planted across 20 acres. In all, more than 675,000 Americans have died due to COVID-19 since the pandemic began. With more than a third of the month remaining, the United States has already reported thousands of more deaths in September than it did in all of August. Through Sunday, the nation reported 32,666 deaths in September, compared with 27,755 in all of August. With deaths averaging nearly 2,000 per day, the U.S. is on track to exceed the total deaths of July and August combined within a matter of days, a USA TODAY analysis of data from Johns Hopkins University shows. The rise in deaths comes as the Centers for Disease Control and Prevention released a report noting 99.4% of all the COVID-19 cases in the U.S. were from the ultra-infectious delta variant. September is on track to be the deadliest month since February. Photos by @apnews and @gettyimages